Polyadenylic acid(poly(a))
[化] 多腺苷酸; 多聚腺苷酸
🗣️ 情景例句
There's always a friend around when you need one.
当你需要朋友帮忙的时候，总会有朋友在你身边的。
Yes, and I took many pictures.
是的，我还照了好多照片。
and usually lashes fiercely with its trunk in all directions.
往往是用鼻子朝各个方向猛烈地甩动。